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Time response of plasmonic spatial differentiators

机译:等离子体空间差分差异的时间响应

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摘要

We investigate the time response of plasmonic spatial differentiators based on prism coupling configurations. We show that when the incident light is time-modulated, in addition to the spatial differentiation, the output field is also contributed by the signal derivative with respect to time. To reduce this impact, the incident pulse needs a steady time span, and the shortest steady time span is about 100 fs. We further show that the time modulation does not degrade the resolution of the spatial differentiation. Also, we numerically demonstrate the image processing of edge detection by the plasmonic spatial differentiator, with the time-modulated signal. (C) 2019 Optical Society of America
机译:我们研究了基于棱镜耦合配置的等离子体空间差异的时间响应。 我们表明,当入射光被时间调制时,除了空间差异之外,输出场还由信号导数相对于时间贡献。 为了减少这种影响,入射脉冲需要稳定的时间跨度,最短的稳定时间跨度约为100 fs。 我们进一步表明,时间调制不会降低空间差异的分辨率。 此外,我们用时间调制信号来数值上展示了由等离子体空间微分器的边缘检测的图像处理。 (c)2019年光学学会

著录项

  • 来源
    《Optics Letters》 |2019年第18期|共4页
  • 作者单位

    Zhejiang Univ Interdisciplinary Ctr Quantum Informat State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Interdisciplinary Ctr Quantum Informat State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Interdisciplinary Ctr Quantum Informat State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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